Here is the answer to the: Jacques-Victor Delforge & Henri-Otto Mayer filed a patent for this type of plunger-based device in 1852 Jeopardy Question. This question was last seen on July 20 2023 Jeopardy game show. The answer we have for Jacques-Victor Delforge & Henri-Otto Mayer filed a patent for this type of plunger-based device in 1852 has a total of 16 letters.
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